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This research introduces a new polynomial measure for W-entanglement, completing a quantitative framework that orders three-qubit entanglement types from bipartite to GHZ states. By establishing this hierarchy alongside established metrics like three-tangle and concurrence, the work provides a consistent basis for comparing the strength of different entangled configurations in multi-particle systems.
Entanglement types mirror states, GHZ stronger than W
New research defines a polynomial measure of W-entanglement, alongside GHZ-entanglement & bipartite concurrence, revealing that these three kinds of three-qubit entanglement are ordered—and reflect equivalence classes of entangled states.
Szilárd Szalay has constructed a new polynomial measure of filling a gap in the established toolkit for quantifying how three quantum bits become linked. This work establishes a clear ordering among entanglement types; researchers found that the…
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